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Trace and Log Analysis: A Pattern Reference for Diagnostics and Anomaly Detection by Software Diagnostics Institute, Dmitry Vostokov

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H

 

Hedges

Sometimes we have variable sequences of Significant Events when we expect the certain constant number of such events in repeated normal and problem cases. For example, in repeated normal cases, we expect more than 10 events but in repeated abnormal cases - just 2 events. The latter cases would indicate that something happened inside the processing of the second event. However, if one or more such cases contain 3 or 4 events that would point to some external influence that aborted the sequence of events. We call such variable event sequences Hedges by analogy with hedge variables or variadic variables67. One of the recent examples that we encountered involved multiple abnormal cases with just 2 events. We were about to investigate the ...

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